I would not be at all surprised to hear that a teaser trailer is attached to AOTC. In fact, that would be kinda funny. I still remember seeing back-to-back trailers for FOTR and AOTC, and seeing the quality of FOTR juxtaposed with AOTC made me laugh all the way through the latter. I'd be up for a trailer for TTT making AOTC look juvenile, not that it'll need any help. ;)
Sorry, just read a not-so-nice review of AOTC, so it's all very fresh in my mind...
Going home now, bye!
-Kevin